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Anti-Xa - Heparin (unfract)
Test CodeHEPA (Xa)
Preferred Specimen
3.2% sodium citrate - blue top tube
Instructions
The light blue capped tubes, containing 3.2% buffered sodium citrate, used for coagulation testing must be allowed to fill completely (after filling a small air space will normally be present). We cannot accept a short filled tube.
Note: All sites except BUMCP and BDMC must separate and freeze plasma before sending to BUMCP.
Note: All sites except BUMCP and BDMC must separate and freeze plasma before sending to BUMCP.
Transport Temperature
Frozen
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted
Serum received instead of Sodium Citrate plasma
Specimen past stability
Frozen plasma received thawed
Underfilled or Overfilled, blood/anticoagulant ratio must be 9/1; Specimens must be between 90% -110% full
Collected in a 3.8% Sodium Citrate tube instead of 3.2% Sodium Citrate tube
Drawn in outdated/expired tube
Hemolyzed, icteric, or lipemic sample
Serum received instead of Sodium Citrate plasma
Specimen past stability
Frozen plasma received thawed
Underfilled or Overfilled, blood/anticoagulant ratio must be 9/1; Specimens must be between 90% -110% full
Collected in a 3.8% Sodium Citrate tube instead of 3.2% Sodium Citrate tube
Drawn in outdated/expired tube
Hemolyzed, icteric, or lipemic sample
